<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头部信息 -->
      <div class="avater_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form
        ref="loginFormRef"
        class="login_form"
        :model="loginForm"
        label-width="0px"
        :rules="loginFormRules"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
          >
          </el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            autocomplete="off"
            type="password"
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button @click="login" type="primary">登录</el-button>
          <el-button @click="resetLoginForm" type="info">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

// ============================================//

<script>
export default {
  data () {
    return {
      loginForm: { username: 'admin', password: '123456' },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置按钮 重置表单
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async (valid, object) => {
        if (valid) {
          const { data: res } = await this.$http.post('login', this.loginForm)
          console.log(res)
          if (res.meta.status !== 200) return this.$message.error('登录失败')
          this.$message.success('登录成功')
          window.sessionStorage.setItem('token', res.data.token)
          this.$router.push('/home')
        }
      })
    }
  }
}
</script>

// ============================================//

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  height: 300px;
  width: 450px;
  background-color: #fff;
  border-radius: 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avater_box {
  width: 130px;
  height: 130px;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  background-color: #fff;
  box-shadow: 0 0 10px #ddd;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #333;
  }
}

.login_form {
  box-sizing: border-box;
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  .btns {
    display: flex;
    justify-content: flex-end;
  }
}
</style>
